Home / 20,487,944.60-30,731,916.90-15,952,981.40

Finding the Fourth Proportional to 20,487,944.60, 30,731,916.90 and 15,952,981.40

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Solution

The fourth proportional to 20,487,944.60, 30,731,916.90 and 15,952,981.40 is: 23,929,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,944.60 : 30,731,916.90 = 15,952,981.40 : x
  2. Step 2: Convert to fraction form
    20,487,944.60/30,731,916.90 = 15,952,981.40/x
  3. Step 3: Cross multiply
    20,487,944.60x = 30,731,916.90 × 15,952,981.40
  4. Step 4: Simplify right side
    20,487,944.60x = 490,265,698,692,045.62
  5. Step 5: Solve for x
    x = 490,265,698,692,045.62/20,487,944.60
  6. Step 6: Final answer
    x = 23,929,472.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.